Finding the Fourth Proportional to 387,585.98, 535,129.60 and 346,622.84
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Solution
The fourth proportional to 387,585.98, 535,129.60 and 346,622.84 is: 478,572.89
Step by Step Solution
- Step 1: Write the proportion equation
387,585.98 : 535,129.60 = 346,622.84 : x - Step 2: Convert to fraction form
387,585.98/535,129.60 = 346,622.84/x - Step 3: Cross multiply
387,585.98x = 535,129.60 × 346,622.84 - Step 4: Simplify right side
387,585.98x = 185,488,141,720.06 - Step 5: Solve for x
x = 185,488,141,720.06/387,585.98 - Step 6: Final answer
x = 478,572.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.